Calculating machine



Dec. 26, 1922. 1,439,710. w. P. QUENTELL.

CALCULATING MACHINE.

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Dec. 26, 1922.

1,439,710. w. P. QUENIELL.

CALCULATING MACHINE.

FILED AJG. I6. |92!- 2 SHEETS-SHIIEI 2.

I I. argl-5I ImmI fuir-1 man .i :Jul-MIMI 33a,

Patented Dec. 26, 1922.

UNITED STATES PATENT OFFICE.

WILLIAM P. QUENTELL, or NEW YORK, N. Y., assIGNon 'ro QUENTELLCORPORATION, s CORPORATION OFANEW YORK.

*CALCULATING MACHINE.

Application led August 16, 1921. Serial No. 492,659.

To all. whom t my cof/went.

Be it known that L WILLIAM P. QUEN- 'rnm.,.a citizen ofthe UnitedStates, residing at Newfork, in the county of New York :1nd State of NewYork, have4 invented or discovered certainnew and useful Improvements inCalculating Machines, ofwhich the following is .a s citication,reference being had thereinto tie accompanyingdrawings.

This. invention relates to certamf improvements on the calculatingYmachine covered bv.

my U. S. Patent No.,1,104,38,5, dated Julr. 21. 1914. I. `In theconstruction shown; by my said patenteach index memberkis.locked to anadding member and moveswith it duringY the full travel of saidaddingmember when multiplication,is-beingfperormed. In prac.,- tice`howcver,.it has beenffound thatthis is objectionable, ,in that there wastoomuch wright of metal .to be oscillate'dwith the adding;r` members,duringI addition and Y11.159 .Cl.l1.l'- ing multiplication, ,Inlaccordance with-the present invention thef-indelx members have butveryshort-movements' andeaeh adding memberj consists of .two separateparts one fon'iprisingV a sector gear or rack bar and .the othercomprising :1 stop-arm part which cooperates with the index member andwhich stop arm-part :and index member may remain stationary whenmultiplication is being done. T he objeetrof ,the present invention isto simplify 4the construction and thereby reduce `the costof production,as

well as to increase the speed -at which ther which are constructedattheir inner or bearmuchine may be operated.

In the accompanying drawings -Fig.- 1 is :i sectional view of acalculating machine embodying the present invention, the section beingtaken on line 1'1, Fig. 2, lookingr in the direction of the arrowsadjacent said line. Fig. 2 is ay artial broken out plan view of thesame. i 3 is a sectional elevation looking from the ttom .of Fig. 4, andFig. 4 is a-plan view of ,themechanism illustrated in Fig. 3. Fig. 5 isadetail front New showing certain parts as they appear looking `from theleft of Fig. 1 in the direction indicated by the arrows 5.

Referring to the drawings, A denotes u portion of the left side framepart of the machine which latter comprises a corresponding right sideframe part. 'Extending transversely of the machine are two slotted barsor combs 1Q and 13, near the front and top of the side frame parts,these transverse slotted bars being connected with the side frame partsand being preferably of channel shape in crosss'ection. Secured to thesaid transverse hars 12 and 13 are a series of strips 14 on which areplaced the digits 1 to 9, inclusive. The figures or digits of eachofthese strips represent certain numbers or values `which are to beadded, and the several strips comprising the series rep.- resent certainvalues beginning with units, at. the bottom orright hand strip andrunning thence into tens, hundreds, thousands, ete. for the series.

Adjacent eachof the strips 14, and movablefin slots in the bars 12 and13, are index 70 members 15, these index members being preferablyprovided ontheir outer sides with a series of projections -ali'ordingfinger recesses 15f corresponding in number to the digitsontheist-ripsll; and which digits, as abpvestted, represent certain valuesto beadded, the saidxindexvmembers being provided `on their inner sideswith a series of ratchetteeth 15". .Theseindex members are normally heldin. raised position by coil springs 16 connected with the upper transverse bar or comb 13, and with the upper ends of said index members 15.

Extending transversely of the machine is an operatiur shaft 17 which, inpractice, will be provided-,at its right hand end with zin operatinghandle :ls in the machine of my said patent.` Loosely mounted on theshaft 17 are the adding member parts 18 and 19,

ing ends as yokes 18n and 19, the former embracing the latter. One setof these addingmember parts is provided for each of' the index bars 15.Each adding member part 18 is in the form of a stop arm to the outer endof which is pivoted a pawl 20 having a looped outer end 20l embracing anindex bur 15. Each pawl 2O is provided with a side lu 2Oh which isintended for cooperation with the ratchet teeth 15 on an index bur ormember 15. as will be explained. Each stop arm pa rt 18 is also providedwith a lateral projection 1S" arranged for engagement with the hookedportion of n latch 21 pivoted on a transverse bar 22, the pivotedportion of said latch being formed as n loop or bail 21 (see Fig. 5)arranged to be engaged by the depending lower end portion or tail 15C ofan index bar 15. Each pawl 2O is engaged b v a fric- 110 tion spring 23`to prevent a :tqo'hfrec move ment thereof, and which friction springswill retain said pawls in place until they are positively operated, aswill be explained. Connected with the lower end of each latch 21 is acoil spring 24 which will normally hold said latch in hooked engagementwith a side projection 18h on a stop arm part 18. The latches 21 extendthrough slots in the transverse bar l2 so as to be held against sidewisemovement, as are also the index members 15 extending through slots inthe bars 12 'and 13, and working freely in said slots.

'Projecting upward from one member of each yoke 19a is an arm 19h whichcarries an adding segment gear 19. Extending forward from each yokesection 19'l is an arm 19c the Vforward' end of which is beneath arojection`18-on a stop arm member 18. ii-ach yoke 19- -isr provided witha short arm 19ai to which is 'connected one end of a coil spring25 theother end of which is attached to a transverse rod v.26. These springsserve to hold the "arins:1f9fc up against the projections 18c and-'whichprojections will prevent movement'oi these me'nt gears 19 until the stoparms 181'?i are r lealsed from the latches 21.` Each 'yoke 1,89,constituting the pivotal portion df a` stop arm 18, is provided with aradial rojecti'on'lSt to which is connected one en of a coil'spring2Z`the other end of which is attached to the transverse rod 26, thesesprings serving VtoholdA the said stop arms 18 upward in engagement withthe hooked portions of the latches'2'1 until the said latchesI arereleased; when the said springs will move th'e said stop arms upward, asdenotedl in dotted lines 'in Fig. 1.

Mounted on the transverse shaft 17 are bails 28 and 29, the Vurpose ofthese bails being to reset the ad ing member parts, or for returning'the same to normal positions after they have been moved for an addingoperation. The bail 28 is fixedv to the shaft 1T so as to be movabletherewith, the ear portions of said bail being fixed to collars 30Secured to said shaft by pins 31. The bail 29 is loosely mounted on theshaft 17, an ear portion of the said bail being provided with a lug 29to which is attached one end of a coil spring 32 theother end of whichis attached to n side. frame A. This bail 29 is, in ihe resettingoperation, arranged to engage Jthe stop arms 18, while the bail 28 isarranged toengage the arms 19 carrying the sector gears 19, as will beunderstood from F i 1.

iin ear portion of the bail 29 is irovided with n laterally projectinrlug 29b lsee Fig, i) arranged to be engaged by a pawl 33..piv ntzillyconnected with an ear portion of the hail 28, the said pawl beingvieldingly held in contact with said lug by a spring 34 connected to atail portion of said pawl and to the bail 28. The pawl 4 33 is providedwith nlug 331 arranged to be engaged by the tail portion 35a of a repeatkey or lever 35 pivoted to a side trame A and havin an Operating handleportion 35 extending outside of said side frame, as shown in Fig. 3.This repeat lever is held in its normal position by a coil spring 36.

In the operation of this improved machine the operator places a fingerin that one of the recesses 15a ot' an index member 15 which correspondsto or registers with a desired number to be registered, and thendepresses the said index member slightly holding the finger in place.The downward movement of the index member is limited by a stop affordedby the shoulders 15d coming in contact with the lower slotted transversebar 12, through which said index member Slides. This downward movementof the index member causes the tail portion 15c of the said indexmember, and which is in contact with the looped portion 21"l ot' a latch21, to operate the said latch against the stress of its spring 24 andthus disengages the hooked portion of said latch from the side lug 18hof a stop arm 18. lVlien thus released the said stop arm will be movedupward by the stress of a spring 27, carrying with it a pawl 20 thelooped fportion 20 of which pawl will engage the nger of the operatorwhich is held in the linger recess in the index member 15 until suchengagement occurs. For exam le, if the finger of the operator be placed1n the finger recess registering with the figure 8 on the number strip14 the upward movement. of the stop arm 18 will be arrested when thestop arm reaches the position shown in dot ted lines in Fig. 1. When thelooped portion 20*1 comes in contact with the tinger of the operator thepawl 20 will be rocked on its pivotal connection with the stop arm 18,thus causing a side lug 20b on said pawl to be moved into position toengage one of the ratchet teeth 15b on the index member 15 as soon asthe operators finger is removed; (see dotted lines Fig. 1) theengagement of the lug 20b with a tooth 15b preventing further upwardmovement of the said stop arm which will now remain stationary in itsupward position until returned to normal position by the bail 29.

ln view of the fact that the addingr sector gears 19, connected by thearms 19 with the yokes 19, are normally held against movement under thestress of their springs 25. by virtue of the engagement of the arms 19on said yokes 19a with the lugs 18C on the stop arms 1S. it will beapparent that until said stop arms are released there will be nomovement of said segment gears; while an upward movement of a stop arm18 permits a corresponding movement of an adding sector gear 19, underthe influence of its spring 25, to a position such, for example, as

, is indicated by dotted lines in Fig. 1.

The sector gears 19 co-operate Withadding wheels 37 carried by pivotedarms 38, and which, by appropriate mechanism not forming part of thepresent invention, are at proper times thrown into enOagement withtheadding sector ear 19. en the shaft 17 is rotated t e bail 28, beinfastened to said shaft, as described, wi rotate with it and will pick upthose ear arms 19J that have been moved to ad g positions and returnthem Ato normal., at the same time rotating the adding `wheels 3Tthrough the .gears 19 to perform an addingoperation. ,The bail 28 vwill.at the same `time rotate the bail 29 through the pawl 33 engaging the,lip 29b and the bail 29 will then; pickup and return telnormal thecorresponding stop arms 18 of thc geararms 19,".v Thus at each releaseof a stop arm 18 and actuation of the shaft 17, as above described, anadding sector gear, co-operating withan addin "wheel, will effects.properadding operation. If multi plication is to be effected theoperator depresses Aand holdsvdown the repeat key lever v35, thusdisconnecting the bail. 29 from the bail 28, holding the samedisconnected durin .multiplication fromv said bail 2 8... The ba' l2S-isthen operated, through .Y the shaft 17,.for a 4desired number of times,

the sto karm 18 meanwhile remainin in the position to which it has beenmove as above described. V- l f ,i

Froml the. foregoing. it` will be apparent that in the present improvedmachine the index members 15 do not move or oscillate with the addinlmembers, as in the machine of my patent iereinbefore referred to, sothat there ,isY less weight of metal to be y moved at each addinoperation than in my former machine, an the operating speed ofthemachine may therefore be increased. The index members 15 of the presentimprovement serve as triggers to release the adding members and alsoserve, in co-operation` with the stop arms 18 and the pawls 20 carriedthereby, to control the movements of the adding sector gears.

It will also be a arent from the foregoing that each ad ing membercomprises twolseparate parts, to wit, a stop arm part 18, and a sectorgear 19` suitably connected with operating means, and that while thesetwo parts may move together for the adding operations, the sector gearpart of the adding member may be operated independentlyr of the stop armmember when multiplication is to be Clone.

The finger recesses 15 and the ratchet teeth 15" on the index members l5afford stations, corresponding to the digits or numerals on the numeralstrips 14.v at which the stop arms will be stopped, and at whichStations said stop arms will remain in locked engagement with the saidindex members when thus stopped.

The invention is not to be understood as being limited to the particulardetails ot' construction herein shown and described, as such details maybe varied widely, within the province of mechanical skill, withoutdeparting from the spirit or essence of the invention..

Having thus described my invention l claim and desire to secure byLetters Patent:

1. In a calculating machine, the combination with yan index memberhaving a plurality of stations corresponding to certain or numerals, ofVan adding member comprising =a stop arm part and a gear part, said partsbeing separate but bein capable of movementtogetheras a unit anil onepart being capable of movement independently ofthe otherpart whendesired, and means `for bringing. ,the said` adding member intocliperative or adding position.

2. In a calculating machine, the combination with an index member havinga plu rality of stations corresponding .to certain digits or numerals,of an 'adding member comprising a stop arm part. and a gear part, saidparts, being separategbut. being capable ofmovement to ther issnunit andone part bei-n capab e of movement independently oftie other part whendesired, means for bringing. the saidwadding member into operative oradding position, and means for returning ,said jadding member parts totheir normal positions. e

3. In a calculating machine, the combinaA tion with an addingmembericomprising :i stop arm part, anda Vgear part, said parts beingcapablefof movementtogether as a unit but being separate so that whendcsired one art may be moved independentlg.' of the ot er, an indexmember having a plurality of stations corresponding to certain digits ornumerals, and bein provided with means for controlling the a dingposition of the said adding member, means for br' the stop arm part ofsaid addingr mem r into operative osition in lockefl en agement with thesaid index member` an means for returning the gear part of said addingmember to normal position without returning the stop arm part to non malosition.

4. n a calculating machine, the con1binntion with an adding member comprising a stop arm part and a gear part, these parts being separate fromeach other so as to be capilble of independent movement when desired. ofan index member haring stations corn spending to certain digits ornumeralsy :init comprising menus 'herebiv said stop :n'ln part may bebrought into locked engage ment with the said index member at an)1 dellO

